SQL Server 2008 server engine failed to start?

install SQL Server 2008 after , The server engine cannot start , But others , Such as Intergration Service and Analysis Service Can start . in addition , Another example in the system SQL Express You can also start . use Management Stuido When the connection , Display the error number 40. I checked a lot on the Internet , Can't solve the problem . Last , Or check the event viewer of the system , Find the root cause of the error ：

SqlServer error ："SQL Server Can't generate FRunCM Threads " 

Re search , Find out prohibit VIA The agreement will do .

Start -》Sql server ****-》 Configuration tool －》SQL Server Configuration Manager－》sql agreement －》 prohibit VIA